... steel module prefab with EPS sandwich panel It is a kind of light steelstructure prefab house made by the C purlin, Z purlin,sandwich panel,corrugated steel ... . Local climate: Wind speed, snow load, etc. 4. Insulation material: Sandwich panel or steel sheet. 5. Crane beam: Do you need crane ... , heat-tight, warm-keeping, water-proof and anti-corrosive. EPS sandwich panel prefab house